STMicroelectronics L4940P85, positive fixed LDO regulator, 8.5 V output, 1.5 A, 68 dB PSRR at 120 Hz, TO-220-3 Full Pack, through hole, -40°C to 150°C.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting | Through Hole |
| Voltage - input | 17V |
| Voltage dropout | 0.9V @ 1.5A |
| Voltage - output (Min (Fixed)) | 8.5V |
| Output current | 1.5A |
| Current - supply | 50 mA |
| Current - quiescent | 8 mA |
| Operating temperature | -40°C~150°C |
| PSRR | 68dB (120Hz) |
| Package | Tube |
| Case | TO-220-3 Full Pack |
| Protection features | Over Temperature, Reverse Polarity, Short Circuit |
| Number of regulators | 1 |
| Output configuration | Positive |
The STMicroelectronics L4940P85 is a single-output positive fixed LDO regulator delivering 8.5 V at up to 1.5 A.
Maximum dropout is 0.9 V at the full 1.5 A load.
The L4940P85 is listed as obsolete.
PSRR is 68 dB at 120 Hz, which is typical for a linear regulator and adequate for rejecting mains-frequency ripple from a rectifier stage.